Rockwell Automation 1738-IT2IM12 User Manual
Installation Instructions
ArmorPOINT RTD and Thermocouple
Input Modules
Catalog numbers 1738-IR2M12, 1738-IT2IM12, Series A
Table of Contents
Topic Page
Important User Information 2
Environment and Enclosure 3
Preventing Electrostatic Discharge 3
About the Module 4
Mount the I/O Base 5
Install the Module 6
Remove the Module from the Mounting Base 6
Wire the Module 7
Communicate with the Module 8
Interpret Status Indicators 10
Specifications 12
2 ArmorPOINT RTD and Thermocouple Input Modules
Important User Information
Solid-state equipment has operational characteristics differing from those of electromechanical
equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls
(Publication SGI-1.1
http://www.rockwellautomation.com/literature/
solid-state equipment and hard-wired electromechanical devices. Because of this difference, and also
because of the wide variety of uses for solid-state equipment, all persons responsible for applying this
equipment must satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages
resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the
many variables and requirements associated with any particular installation, Rockwell Automation, Inc.
cannot assume responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits,
equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell
Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
available from your local Rockwell Automation sales office or online at
WARNING: Identifies information about practices or circumstances that can cause an
explosion in a hazardous environment, which may lead to personal injury or death,
property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to
personal injury or death, property damage, or economic loss. Attentions help you
identify a hazard, avoid a hazard and recognize the consequences.
) describes some important differences between
SHOCK HAZARD: Labels may be on or inside the equipment (for example, drive or
motor) to alert people that dangerous voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment (for example, drive or
motor) to alert people that surfaces may reach dangerous temperatures.
IMPORTANT Identifies information that is critical for successful application and understanding of
the product.
Publication 1738-IN005B-EN-E - January 2013
ArmorPOINT RTD and Thermocouple Input Modules 3
Environment and Enclosure
ATTENTION: This equipment is intended for use in overvoltage Category II
applications (as defined in IEC 60664-1), at altitudes up to 2000 m (6562 ft)
without derating.
This equipment is considered Group 1, Class A industrial equipment according
to IEC/CISPR 11. Without appropriate precautions, there may be difficulties with
electromagnetic compatibility in residential and other environments due to
conducted and radiated disturbances.
This equipment is supplied as enclosed equipment. It should not require
additional system enclosure when used in locations consistent with the
enclosure type ratings stated in the Specifications section of this publication.
Subsequent sections of this publication may contain additional information
regarding specific enclosure type ratings, beyond what this product provides,
that are required to comply with certain product safety certifications.
In addition to this publication, see:
• Industrial Automation Wiring and Grounding Guidelines, Rockwell
Automation publication 1770-4.1
• NEMA Standard 250 and IEC 60529, as applicable, for explanations of the
degrees of protection provided by different types of enclosure.
Preventing Electrostatic Discharge
ATTENTION: This equipment is sensitive to electrostatic discharge, which can
cause internal damage and affect normal operation. Follow these guidelines
when you handle this equipment:
• Touch a grounded object to discharge potential static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component boards.
• Do not touch circuit components inside the equipment.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging when not in use.
, for additional installation requirements.
Publication 1738-IN005B-EN-E - January 2013
4 ArmorPOINT RTD and Thermocouple Input Modules
MOD
NET
1738-IR2M12/A
RTD (Ohms) In
0
1
RTD 0
RTD 1
1
2
3
43780
About the Module
The ArmorPOINT™ I/O family consists of modular I/O modules. The sealed IP67
housing of these modules requires no enclosure. Note that environmental requirements
other than IP67 may require an additional appropriate housing. I/O connectors are sealed
M12 (micro) style. The mounting base ships with the module. The 1738-IR2M12 module
is shown here.
ArmorPOINT RTD and Thermocouple Input Module
Description Description
1 Connector M12-A 3 LED indicators
2 Connector M12-B
Publication 1738-IN005B-EN-E - January 2013
ArmorPOINT RTD and Thermocouple Input Modules 5
IMPORTANT
102
(4.02)
56
(2.2)
46.25 (1.8)
51.9 (2)
Adapter
20.1 (0.8)
43769
Millimeters
(Inches)
51.9 (2)
51.9 (2)
20.1 (0.8)
Keyswitch
Ground lug connection
Latching mechanism
43675
Mount the I/O Base
Mount the I/O base on a wall or panel, using the screw holes provided in the base.
The module must be mounted on a grounded metal mounting plate or other
conductive surface.
Mounting Diagram for ArmorPOINT Base with Adapter
Follow the instructions to install the mounting base.
1. Lay out the required points as shown above in the drilling dimension diagram.
2. Drill the necessary holes for M4 (#8) machine or self-tapping screws.
3. Mount the base using M4 (#8) screws.
4. Ground the system using the ground lug connection. The ground lug connection
is also a mounting hole.
Mounting Base
Publication 1738-IN005B-EN-E - January 2013
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